Necessity of using studs instead of bolts for main bearings on the Bensport engine, affecting the 20/25 model.
| Identifier | ExFiles\Box 85\5\ scan0022 | |
| Date | 21th December 1932 | |
| To BY. {R.W. Bailey - Chief Engineer} from E. {Mr Elliott - Chief Engineer} c. to Hs. {Lord Ernest Hives - Chair} r 217 E.4/HP.21.12.32 X5010. re Bensport(Codename for 3 1/2-litre Bentley) engine and larger crankshaft for 20/25. We find it necessary to use studs instead of bolts for securing the main bearings on Bensport(Codename for 3 1/2-litre Bentley) on account of the petrol pump drive. This affects the main bearing caps for the larger crankshaft on 20/25 which were interchangeable with Bensport(Codename for 3 1/2-litre Bentley). We are dependent on Bensport(Codename for 3 1/2-litre Bentley) for type testing the new bearing caps, etc. for the bigger crankshaft. E. {Mr Elliott - Chief Engineer} | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).